Estimate the endurance strength (Se) of a 1.49-in-diameter (d) rod of AISI 1040 steel having a machined finish and heat-treated to atensile strength ( Su) of 108 kpsi, loaded in rotating bending. Obtain the parameters for Marin surface modification factor from Table6-2.The endurance strength iskpsi

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Answered: Estimate the endurance strength (Se) of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

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Produced from xCy steel material by machining method, the shaft is bedded at C and D points. With the shaft, constant Fy= 830 N forces in the vertical direction and constant Fx= 4,3 kN forces in the axial direction, which do not rotate together. The tensile strength of the shaft material is (sigma)tensile = 630 MPa and the yield strength is (sigma)yield = 430 MPa. For 50% reliability, analyze the fatigue damage condition of the shaft sections A and B separately.Question: How do we apply a tensile force to a part supported on both sides?Answer: We think that one of the bearings is a bearing that allows axial movement.(Take SI unit and make the solutions legit and clear please. I need an answer even though it doesn't reach a clear solution.)
A steel bar having known Sut (1200 MPa) and Sy (950 MPa) has a fine ground surface. Determine the fatigue strength for bending corresponding to (1) 106 or more cycles and (2) 2 ✕ 105 cycles. Im looking for a second opinion on this question as the first response used a method I have not seen and gave little explanation.
A 2" diameter shaft with a radial hole of 0.5" dia. is made of steel whose BHN=186. What is its fatigue-strength reduction factor if the shaft is to be subjected to pure torsion?
Produced from xCy steel material by machining method, the shaft is bedded at C and D points. With the shaft, constant Fy= 870 N forces in the vertical direction and constant Fx= 4,7 kN forces in the axial direction, which do not rotate together. The tensile strength of the shaft material is (sigma)tensile = 670 MPa and the yield strength is (sigma)yield = 470 MPa. For 50% reliability, analyze the fatigue damage condition of the shaft sections A and B separately. Note: Take SI unit and make the solutions legit and clear please
Produced from xCy steel material by machining method, the shaft is bedded at C and D points. With the shaft, constant Fy= 870 N forces in the vertical direction and constant Fx= 4,7 kN forces in the axial direction, which do not rotate together. The tensile strength of the shaft material is (sigma)tensile = 670 MPa and the yield strength is (sigma)yield = 470 MPa. For 50% reliability, analyze the fatigue damage condition of the shaft sections A and B separately.
The round cross-sectional bar shown below is cut from a steel with a diameter of 36 mm and has the following properties (Sut = 479 MPa, Sy = 389 MPa and fully corrected Se =177 MPa). The bar is loaded at its end with a fluctuating bending load ranges from Fmin = -423 N to Fmax = 850 N. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? * your answer must be in mm. * accepted answer range (+/- 5 mm)
Produced from xCy steel material by machining method, the shaft is bedded at C and D points. With the shaft, constant Fy= 820 N forces in the vertical direction and constant Fx= 4,2 kN forces in the axial direction, which do not rotate together. The tensile strength of the shaft material is (sigma)tensile = (sigma)ut = 620 MPa and the yield strength is (sigma)yield = 420 MPa. For 50% reliability, analyze the fatigue damage condition of the shaft sections A and B separately.
Two steels are being considered for manufacture of as-forged connecting rods subjected to bending loads. One is AISI 4340 Cr-Mo-Ni steel capable of being heat-treated to a tensile strength of 260 ksi. The other is a plain carbon steel AISI 1040 with a ultimate strength of 113 ksi. Each rod is to have a size giving an equivalent diameter of 0.75 in. Determine the endurance limit for each material. Is there any advantage to using the alloy steel for this fatigue application?
A 1-in-diameter solid round bar has a groove 0.1-in deep with a 0.1-in radius machined into it. The bar is made of AISI 1020 CD steel and is subjected to a purely reversing torque of 1800 lb-in. For the S-N diagram of this material, let f=0.9. Estimate the number of cycles to failure. If the bar is also placed in an environment with a temperature of 750 F, estimate the number of cycles to failure
The round cross-sectional bar is cut from an AISI 1020 colddrawn steel with a diameter of 25 mm. The bar is loaded at its end with a completely reversed load Fmin = 5 kN, Fmax = -3 kN. Using a design factor of nd = 1.2, what will be the maximum length of the bar that prevents failure using Modified Goodman criteria? What length must be used if a more conservative criteria is used?
A steel bar having known S_ut (1200 MPa) and S_y (950 MPa) has a fine ground surface. Determine the fatigue strength for bending corresponding to (1) 10^6 or more cycles and (2) 2 ✕ 10^5 cycles.
Design of a Shaft subjected to Alternating Loads 1. [Proof of Concept] Considéra machined steel circular shaft subjected to maximum and minimum bending moment of 1000 and 4000 lb .in, respectively; and a maximum and minimum torque of 250 and 1600 Ib.in, respectively. Consider the factor of safety to be 2, the yield strength of the materials 40 ksi, and its ultimate strength to be 70ksi.Determine the minimum diameter of the shaft for the case where D is 20% larger than d, the fillet radius is 10% of d, and reliability is 99%. You may use DE-ASM E formula. 2. Write a computer code that can take Tm, Ta, Mm, Ma, choice of material, safety factor, and other necessary assumptions from the user and return an estimated diameter for the shaft.Choice of inputs is up to you. Note that many of the required quantities are themselves function of the shaft diameter. Your code should be submitted with a report.

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